Question

why do diamonds sparkle from so many colours​

Answer 1

Answer:

Diamond shines because of total internal reflection of light. The refractive index of diamond is 2.4 and hence, its critical angle is small, 24.6°. The surface of the diamond are cut such that light in it undergoes multiple internal reflections.Thus,diamond sparkle.

Explanation:

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Answer 2

Answer:

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Explanation:

Diamond shines because of total internal reflection of light. The refractive index of diamond is 2.4 and hence, its critical angle is small, 24.6°. The surface of the diamond are cut such that light in it undergoes multiple internal reflections. ... Thus,diamond sparkle.